Journal
CHINESE CHEMICAL LETTERS
Volume 29, Issue 6, Pages 857-860Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2017.10.003
Keywords
Metal-organic framework; Supermolecule; Anionic dyes; Adsorption and separation; Charge-exclusive effect
Categories
Funding
- National Natural Science Foundation of China [21371102, 21531005, 21673120]
- Natural Science Foundation of Tianjin [16JCZDJC36900, 15JCZDJC38800]
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Until now, to remove the harmful organic dyes from effluents is an outstanding challenge. The design and synthesis of new porous materials capable of selectively adsorbing dyes are critical to the environment and human health. Here, a unique cluster-based cationic metal-organic framework, named ([Zn-8(BTA)(6)(L)(5)Cl-2]center dot(NO3)(3)}center dot 5DMF (NUM-4) was synthesized, which displays one-dimensional (1D) open channels along a axis in its 3D supramolecular stacking structure. Benefiting from the nature of cationic framework and high surface area/pore volume, NUM-4 shows rapid and selective adsorption of anionic dyes (MO, AO, CR and MB) based on the charge-exclusive effect. Besides, the adsorbed dyes can be easily released in NH4Cl saturated solution of ethanol. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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